Know what you are talking about.
If you're teaching today what you were teaching five years ago, either the field is dead or you are.
No man's knowledge here can go beyond his experience.
The highest result of education is tolerance.
That men do not learn very much from the lessons of history is the most important of all the lessons that history has to teach.
Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
Knowing is not enough; we must apply. Willing is not enough; we must do.
Real knowledge is to know the extent of one's ignorance.
Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.
To educate a person in the mind but not in morals is to educate a menace to society.
They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.
Necessity is the mother of invention.
All knowledge that the world has ever received comes from the mind; the infinite library of the universe is in our own mind.
There is nothing more awful, insulting, and depressing than banality.
The great difficulty in education is to get experience out of ideas.
We could never learn to be brave and patient, if there were only joy in the world
Men are born ignorant, not stupid. They are made stupid by education.
The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.
Opinion is the medium between knowledge and ignorance.